Park Tool
Head Tube Reaming and Facing Set (33.8mm reamer)

Details

Proper frame preparation is very important. Park Tool's Head Tube Reaming and Facing Set (33.8mm reamer) combines reaming and facing of the head tube to create a perfect fit for most sizes of head cups. The HTR-1B comes with a reamer of 33.9mm for the 1-1/8 inch headset standard.